Buffer overflow in FreeBSD

CVE-2026-58095

mp_Enddisc() used incorrect length calculations when formatting endpoint discriminator addresses for display, allowing a received endpoint option to overflow a global result buffer. A malicious PPP peer can crash ppp(8) or potentially execute arbitrary code as root.

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (47.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-58095: held from 0.006 to 0.006.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000

Affected products

  • FreeBSD — versions 15.0, 14.4, 15.1

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-58095?
CVE-2026-58095 is a high-severity vulnerability in FreeBSD, classified under Heap-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-08-26.
How severe is CVE-2026-58095?
High severity. CVSS v3 base score is 8.8 out of 10.